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          <font color=blue>西南科技大学ACM-ICPC程序设计竞赛</font>
        </h1>
      </center>
      <p>&nbsp;&nbsp;Problem Set is the place where you can find large amount of problems from different programming contests. Online Judge System allows
        you to test your solution for every problem.</p>
      <p>
        &nbsp;&nbsp;First of all, read carefully <a href=faq.htm target=_blank>Frequently Asked Questions</a>.<br> &nbsp;&nbsp;Then, choose <a
          href=problemlist>problem</a>, solve it and <a href=submitpage>submit</a> it.
      </p>
      <p>
        &nbsp;&nbsp;If you want to publish your problems or setup your own online contest, just <a href=mailto:null>write us</a><br>
      </p>
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OJ使用的相关帮助请参见
<A href="faq.htm">F.A.Q.</A>
<BR>
&nbsp;&nbsp;你可以在
<A href="problemlist"><B>题库</B></A>
找到练习题目并
<A href="submitpage"><B>提交</B></A>
代码通过本系统测试你的解答。
<BR>
&nbsp;&nbsp;如果有什么疑问或建议请联系
<A href="sendpage?to=root">管理员</A>
。
<BR>
&nbsp;&nbsp;题目数量：1217
<BR>
<pre></pre>
<BR>
&nbsp;&nbsp;
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<B>PowerOJ测试，如果遇到问题请联系<A href="mailto:power721@163.com">管理员</A>。
</B>
<BR>
<P>&nbsp;&nbsp;Problem Set is the place where you can find large amount of problems from different programming contests. Online Judge System allows you to
  test your solution for every problem.</P>
<P>
  &nbsp;&nbsp;First of all, read carefully <A href="faq.htm" target=_blank>Frequently Asked Questions</A>.<BR>&nbsp;&nbsp;Then, choose <A
    href="problemlist">problem</A>, solve it and <A href="submitpage">submit</A> it.
</P>
<P>
  &nbsp;&nbsp;If you want to publish your problems or setup your own online contest, just <A href="mailto:swust_acm@163.com">write us</A><BR>
</P>
<a name="io"></a>
<div class="faq_content_Q">
  <font color="#FF8040"><b>Q</b></font>：我的程序要在哪里输入和输出数据？
</div>
<font color="green"><b>A</b></font>
：你的程序必须从stdin（基本输入）读入数据并且从stdout（基本输出）输出数据. 例如，你使用C语言的话，使用scanf输入数据，使用printf输出数据，使用C++语言的话，还可以使用cin和cout读入输出数据。
<br>
<!--请注意，你不能进行任何文件的读写操作，否则会返回错误&quot;<font color=#b8860b>Runtime Error</font>&quot;或者&quot;<font color=#b8860b>Wrong Answer</font>&quot;。-->
读写创建文件及调用其它程序等操作将会被系统忽略。
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